Fix race condition in notify_* examples

The fix in commit cf4159156b was incomplete. While some false positives
are caused by sleep() in the file system taking longer than expected,
there was also a race condition where the file system would run before
the contents are initialized properly.

1 files changed, 8 insertions, 13 deletions

diff --git a/test/test_examples.py b/test/test_examples.py
index 2990d25..e0f9be4 100755
--- a/test/test_examples.py
+++ b/test/test_examples.py
@@ -151,21 +151,16 @@ def test_notify1(tmpdir, name, options, notify):
     mnt_dir = str(tmpdir)
     cmdline = base_cmdline + \
               [ pjoin(basename, 'example', name),
-                '-f', '--update-interval=2', mnt_dir ] + options
+                '-f', '--update-interval=1', mnt_dir ] + options
     if not notify:
         cmdline.append('--no-notify')
     mount_process = subprocess.Popen(cmdline)
     try:
         wait_for_mount(mount_process, mnt_dir)
         filename = pjoin(mnt_dir, 'current_time')
-        # Wait until first update
-        while True:
-            with open(filename, 'r') as fh:
-                read1 = fh.read()
-            if read1:
-                break
-            safe_sleep(2)
-        safe_sleep(6)
+        with open(filename, 'r') as fh:
+            read1 = fh.read()
+        safe_sleep(2)
         with open(filename, 'r') as fh:
             read2 = fh.read()
         if notify:
@@ -183,8 +178,8 @@ def test_notify_inval_entry(tmpdir, notify):
     mnt_dir = str(tmpdir)
     cmdline = base_cmdline + \
               [ pjoin(basename, 'example', 'notify_inval_entry'),
-               '-f', '--update-interval=2',
-                '--timeout=10', mnt_dir ]
+                '-f', '--update-interval=1',
+                '--timeout=5', mnt_dir ]
     if not notify:
         cmdline.append('--no-notify')
     mount_process = subprocess.Popen(cmdline)
@@ -199,10 +194,10 @@ def test_notify_inval_entry(tmpdir, notify):
             fname = pjoin(mnt_dir, os.listdir(mnt_dir)[0])
             os.stat(fname)
 
-        safe_sleep(4)
+        safe_sleep(2)
         if not notify:
             os.stat(fname)
-            safe_sleep(10)
+            safe_sleep(5)
         with pytest.raises(FileNotFoundError):
             os.stat(fname)
     except: